<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.test {
	width:500px;
	height:auto!important; /*这句和下一句是为了实现ie6最小高度*/
	height:20px;           /*这句和上一句是为了实现ie6最小高度*/
	min-height:20px;
	padding:20px 20px;
	margin-left:60px;
	background:#beceeb;
	position:relative;
}
.test span {
	width:0;
	height:0;
	font-size:0;
	overflow:hidden;
	position:absolute;
}
.test span.bot {
	border-width:20px;
	border-style:solid;
	border-color:#beceeb #beceeb #ffffff #ffffff;
	left:-40px;
	top:0px;
}
.test span.top {
	border-width:9px 20px;
	border-style:solid solid dashed dashed;
	border-color: #fff #fff transparent transparent;
	left:-40px;
	top:0px;
}
</style>
</head>

<body>
<div class="test"> <span class="bot"></span> <span class="top"></span> </div>
</body>
</html>
